Free Grade 3 Working with Estimation in Context Common Errors: Common Mistakes Quizzes
Free Grade 3 quizzes for Working with Estimation in Context Common Errors: Common Mistakes: 12 real questions with a full answer key and worked solutions. Rounding gives a simpler number that is close to the real one. Look at the digit just right of the place you round to: 5 or more rounds up, 4 or less rounds down.
Free
Higher
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with estimation in context common errors: common mistakes
Explain working with estimation in context common errors: common mistakes accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation in context common errors: common mistakes
Calculate working with estimation in context common errors: common mistakes accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation in context common errors: common mistakes
Compare working with estimation in context common errors: common mistakes accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with estimation in context common errors: common mistakes
Justify working with estimation in context common errors: common mistakes accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Working with Estimation in Context Common Errors: Common Mistakes works
Rounding gives a simpler number that is close to the real one. Look at the digit just right of the place you round to: 5 or more rounds up, 4 or less rounds down.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Round 883 to the nearest 10.[1]
- 2.Round 888 to the nearest 10.[1]
- 3.Round 487 to the nearest 10.[1]
- 4.Round 142 to the nearest 10.[1]
- 5.Round 9,856 to the nearest 100.[2]
- 6.Round 6,878 to the nearest 10.[2]
- 7.Round 8,231 to the nearest 10.[2]
- 8.Round 4,705 to the nearest 10.[2]
- 9.Round 33,568 to the nearest 1,000.[3]
- 10.Round 22,770 to the nearest 100.[3]
- 11.Round 69,393 to the nearest 100.[3]
- 12.Round 79,725 to the nearest 1,000.[3]
Show answers and working
1. 880
Find the two multiples of 10 either side: 880 and 890. Look at the digit to the right of the rounding place: 5 or more rounds up. 883 rounds to 880.
2. 890
Find the two multiples of 10 either side: 880 and 890. Look at the digit to the right of the rounding place: 5 or more rounds up. 888 rounds to 890.
3. 490
Find the two multiples of 10 either side: 480 and 490. Look at the digit to the right of the rounding place: 5 or more rounds up. 487 rounds to 490.
4. 140
Find the two multiples of 10 either side: 140 and 150. Look at the digit to the right of the rounding place: 5 or more rounds up. 142 rounds to 140.
5. 9,900
Find the two multiples of 100 either side: 9800 and 9900. Look at the digit to the right of the rounding place: 5 or more rounds up. 9856 rounds to 9900.
6. 6,880
Find the two multiples of 10 either side: 6870 and 6880. Look at the digit to the right of the rounding place: 5 or more rounds up. 6878 rounds to 6880.
7. 8,230
Find the two multiples of 10 either side: 8230 and 8240. Look at the digit to the right of the rounding place: 5 or more rounds up. 8231 rounds to 8230.
8. 4,710
Find the two multiples of 10 either side: 4700 and 4710. Look at the digit to the right of the rounding place: 5 or more rounds up. 4705 rounds to 4710.
9. 34,000
Find the two multiples of 1000 either side: 33000 and 34000. Look at the digit to the right of the rounding place: 5 or more rounds up. 33568 rounds to 34000.
10. 22,800
Find the two multiples of 100 either side: 22700 and 22800. Look at the digit to the right of the rounding place: 5 or more rounds up. 22770 rounds to 22800.
11. 69,400
Find the two multiples of 100 either side: 69300 and 69400. Look at the digit to the right of the rounding place: 5 or more rounds up. 69393 rounds to 69400.
12. 80,000
Find the two multiples of 1000 either side: 79000 and 80000. Look at the digit to the right of the rounding place: 5 or more rounds up. 79725 rounds to 80000.
Worked examples
Round 549 to the nearest 10.
- Find the two multiples of 10 either side: 540 and 550.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 549 rounds to 550.
- Answer: 550
Round 7,068 to the nearest 100.
- Find the two multiples of 100 either side: 7000 and 7100.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 7068 rounds to 7100.
- Answer: 7,100
Round 54,455 to the nearest 1,000.
- Find the two multiples of 1000 either side: 54000 and 55000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 54455 rounds to 54000.
- Answer: 54,000
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Looks at the wrong digit to decide whether to round up.
Correction: Underline the rounding place, then circle the digit to its right.
Changes the digits after the rounding place to anything other than 0.
Correction: Every digit after the rounding place becomes 0.
Teacher tips
- · Use a number line showing the two multiples either side.
Parent tips
- · Estimate the shopping bill to the nearest dollar.
Real-life applications
- · Estimating the total of a shopping trip before paying.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
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- Start with Working with Estimation in Context Common Errors: Visual Models, Working with Estimation in Context Common Errors: Worked Examples, Rules and Methods in Estimation in Context Common Errors. Each one has its own free lesson, worksheet and quiz.
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- What comes next after Working with Estimation in Context Common Errors: Common Mistakes?
- Move on to Working with Estimation in Context Common Errors: Real-life Applications, Introduction to Estimation in Context Common Errors, Key Vocabulary of Estimation in Context Common Errors, Rules and Methods in Estimation in Context Common Errors, which build directly on this idea.
Related resources
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